/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.util;

/**
 * 单例, 可以安全地通过 {@code ==} 操作进行比较.
 * 由 {@link ConstantPool} 创建和管理.
 */
public interface Constant<T extends Constant<T>> extends Comparable<T> {

    /**
     * 返回分配给此 {@link Constant} 的唯一编号.
     * Returns the unique number assigned to this {@link Constant}.
     */
    int id();

    /**
     * 返回该 {@link Constant} 的名称
     */
    String name();
}
